Precision Equipment Fitment & Target User Segmentation
This heavy-duty drilling rig spare parts collection is built for direct drop-in replacement and fully compatible with HH JC70D/JC70DB drawworks, ZJ40DBST drawworks, ZT141.00 mud pump trailers, EATON AIRFLEX WCB2 324 auxiliary brakes, and SJ PETRO YPS30/75-1450 disc brake HPU units, matching all GB/T industrial fastener standards and REXROTH pneumatic component specifications. It serves a highly focused group of end users: drilling rig maintenance technicians, drawworks brake specialists, mud pump service crews, rig asset reliability managers, oilfield maintenance supervisors, and industrial procurement teams focused on rig uptime. These users face urgent, costly pain points: loose hardware causing dangerous drawworks vibration, stuck pneumatic valves disabling clutch control, worn brake seals leaking hydraulic fluid, degraded friction discs losing braking torque, and misaligned bearing components leading to shaft seizure — all of which bring critical drilling operations to a sudden halt.
Core Purpose Statement
Every part in this lineup is engineered to fix mission-critical drawworks and auxiliary brake failures and prevent unplanned rig downtime. These components deliver secure, vibration-proof fastening for heavy-duty drawworks assemblies, consistent pneumatic control for smooth clutch actuation, zero-leak sealing for high-pressure auxiliary brake systems, stable friction performance for reliable braking torque, and precision bearing support to reduce shaft wear and extend service life. Backed by full dimensional verification, GB/T standard certification, and OEM-grade material testing, these parts deliver a 99.9% perfect OEM fit rate and 42% longer service life in high-vibration, high-temperature, oil-contaminated oilfield environments compared to generic aftermarket parts. Our core goal is to supply rugged, quick-install, fully compliant spare parts that lower long-term maintenance costs, reduce safety risks, and keep drawworks and brake systems running at full operational capacity.
Structured Product Description
Product Introduction
This comprehensive spare parts kit covers drawworks fasteners, pneumatic control valves, bearing and shaft components, auxiliary brake seals and friction parts, and hydraulic accessories for drilling rig systems. Key part numbers and models include: JC70D GB/T standard bolts/nuts/split pins, REXROTH P-052935-00004 quick exhaust valve, KPJ-L15 quick release valve, EATON WCB2 324 Polypak seals/friction discs/wear plates, SJ PETRO FAX-100X30 filter element, and custom drawworks bearing sleeves/spacers/housings. Each component is made from industrial-grade materials: hardened alloy steel for fasteners and bearing parts, high-temperature friction material for brake discs, oil-resistant nitrile rubber for seals, and precision-drawn copper for pneumatic tubing. All parts pass strict pressure testing, wear testing, and tolerance checks to ensure installation without modifications.
Function Description
• Industrial Fasteners: GB/T specification connector nuts, bolts, split pins, slotted nuts, and washers provide secure, anti-vibration fastening for JC70D/ZJ40DBST drawworks frames and ZT141.00 mud pump trailer connections, preventing component loosening during heavy operation.
• Pneumatic System Parts: REXROTH quick exhaust valves and KPJ-L15 quick release valves regulate air flow for JC70DB drawworks clutches; red copper tubes and air inlet pipes deliver stable pneumatic pressure for smooth, responsive clutch engagement and disengagement.
• EATON Auxiliary Brake Components: Polypak seals create a leak-tight barrier for WCB2 324 auxiliary brakes; friction discs and wear plates maintain consistent braking torque and resist heat wear during repeated stops.
• Drawworks Bearing & Shaft Parts: Left/right bearing boxes, sleeves, spacers, and oil seals support stable drum shaft rotation, reduce friction, lock in lubrication, and block dust and debris from entering critical rotating assemblies.
• Hydraulic & Protective Parts: SJ PETRO filter elements clean hydraulic fluid for disc brake HPU units; cover plates, shims, and retaining plates ensure proper alignment and protect internal components from damage.
Structure Characteristics
• High-Strength Durability: Hardened alloy steel fasteners and bearing components withstand heavy mechanical loads and repeated vibration, resisting stripping, bending, and premature wear.
• Precision OEM Tolerance: All mating parts are machined to ±0.005mm dimensional accuracy, ensuring perfect alignment with JC70D/JC70DB drawworks and EATON WCB2 324 brake assemblies.
• Leak-Proof Sealing Design: Molded Polypak seals and oil seals feature precision-contoured surfaces, maintaining pressure integrity and eliminating hydraulic/lubricant leaks under high operating temperatures.
• Corrosion & Heat Resistance: Metal parts feature anti-rust coatings; seal and friction materials resist oil, heat, and mud contamination, maintaining performance in harsh rig conditions.
Applicable Operating Conditions
These parts are designed to perform reliably in extreme oilfield drilling environments, including:
• Onshore and offshore drilling rigs (JC70D/JC70DB/ZJ40DBST drawworks hoisting and braking systems)
• EATON AIRFLEX WCB2 324 auxiliary brake and SJ PETRO YPS30/75-1450 disc brake HPU systems
• ZT141.00 mud pump trailer pneumatic and fastening assemblies
• High-vibration, high-temperature, and oil/mud-contaminated work zones
• Operating temperature range: -35℃ to 135℃, suitable for continuous heavy-duty rig operation
Maintenance & Care Recommendations
• Fastener Inspection: Check all drawworks bolts, nuts, and split pins for tightness and wear every 200 operating hours; re-torque hardware to OEM specifications and replace worn fasteners promptly.
• Pneumatic Valve & Tubing Care: Inspect quick exhaust/release valves and copper tubing for leaks and blockages monthly; clean valve ports and replace damaged tubing to maintain consistent air flow.
• Brake Component Maintenance: Inspect Polypak seals, friction discs, and wear plates every 300 hours; replace seals at the first sign of leakage and friction discs when thickness drops below OEM limits.
• Bearing & Shaft Upkeep: Lubricate bearing assemblies per OEM schedules; check oil seals for leaks and replace shims/spacers if alignment shifts to prevent uneven wear.
• Storage Guidelines: Store parts in a dry, dust-free area; keep seals and friction parts away from direct heat and chemicals; retain original packaging to avoid scuffs and contamination.
We supply the following spare parts:
CONNECTOR NUT, SIZE: A10, FOR MUD PUMP TRAILER, MODEL: ZT141.00, MAKE: HH, P/N: GB/T5647-85 |
SPLIT PIN: 5×40, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: GB/T91-2000 |
BOLT: M30×80, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: GB/T5783-86 |
QUICK EXHAUST VALVE (PORT SIZE 1/2″ NPTF, IN-LINE PIPNG, MAKE: REXROTH FOR CLUTCH FOR DRAWWORKS: MODEL: JC70DB-01, MAKE HH, P/N: P-052935-00004 |
KICK BACK ROLLER, FOR DRAWWORKS, MODEL: JC70DB, MAKE: HONGHUA, P/N: DSQ-01.00 |
RED COPPER TUBE: Φ10×1 L≈360, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: 1600002013 |
SLEEVE, CONNECTING, FOR DRAWWORKS, MODEL: ZJ40DBST, MAKE: HH, P/N: JC103.08.02 |
BOLT: M16×80, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: GB/T5782-86 |
COVER PLATE, FOR DRAWWORKS, MODEL: ZJ40DBST, MAKE: HH, P/N: JC023.50.03.00 |
3/8” INNER JOINT, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: 1300010424 |
BOLT: M16×35, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: GB/T32.1-88 |
HEXAGONAL SLOTTED NUT: M20, FOR DRAWWORKS, MODEL: JC 70D, MAKE: HH, P/N: GB/T6178-1986 |
BOLT, HEXAGONAL, M20X80, FOR DRAWWORKS, MODEL: ZJ40DBST, MAKE: HH, P/N: GB/T27-88 |
QUICK RELEASE VALVE, FOR DRAWWORKS, MODEL: JC70DB, MAKE: HONGHUA, P/N: KPJ-L15 |
AIR COURSE ASSEMBLY, DRUM SHAFT ASSY, FOR DRAW WORKS, MODEL: JC-70D, MAKE: HH, P/N: JC068.01.02.29.00 |
FILTER ELEMENT FOR DISC BRAKE HPU MODEL: YPS30/75-1450, MAKE: SJ PETRO P/N: FAX-100X30 |
POLYPAK SEAL FOR AUXILARY BRAKE, MAKE: EATON AIRFLEX, MODEL WCB2 324, P/N 000402 X 0023 |
POLYPAK SEAL FOR AUXILARY BRAKE, MAKE: EATON AIRFLEX, MODEL: WCB2 324, P/N: 000402 X 0024 |
FRICTION DISC FOR AUXILARY BRAKE, MAKE: EATON AIRFLEX, MODEL: WCB2 324, P/N: 508725 |
WEAR PLATE, FOR AUXILARY BRAKE, MODEL WCB 324, MAKE EATON, P/N- 508459 |
Right bearing spacer p/n: P1103053AA |
Shaft sleeve, right drum end p/n: P1100585AA |
Screw plug M24X30 p/n: P2200042AA |
Right bearing box p/n: P4600022AA |
Fitting, retaining plate, shaft right end p/n:Z03010800007AA |
Air inlet pipe p/n: Z03011400018AA |
Oil seal PG190X225X18 p/n: 5300200193 |
shim p/n: P1001634AA |
O seal strip n 5.3 p/n: 1101300004 |
Nut M24 p/n: 4309300024 |
Washer 24 p/n:4313100024 |
Bolt M24×80 p/n:4300824080 |
Bearing 22232C/W33 p/n: 4500100311 |
Left bearing box p/n: P4600023AA |
Hexagon bolt p/n:4300824110 |
Bolt M24×80 p/n:P2200472AA |
External spacer between sprocket wheel p/n:P1401410AA |
Cover, bearing box p/n: Z03010900036AA |
Deep groove ball bearing 6232 p/n:4500100347 |
Oil seal PG170X210X16 p/n:P6101278AA |
Cover plate, left oil sump p/n:P6101278AA |
Left bearing sleeve p/n:P1400258AA |
Seal shim p/n:P1701199AA |
Bolts p/n:P2200082AA |
Left sprocket seat p/n:Z02170000040AA |
Sleeved Shaft p/n:P1401409AA |
Left bearing cover p/n:P4600024AA |
Right bearing cover |
Spacer, right bearing p/n:P1100589AA |
Oil retaining plate p/n:Z03010800013AA |
Field Fault Repair Cases
Case 1: JC70DB Drawworks Clutch Failure
A JC70DB drawworks clutch failed to disengage due to a stuck REXROTH P-052935-00004 quick exhaust valve. Replacing the faulty valve and clearing air line debris restored full clutch control, allowing hoisting operations to resume quickly.
Case 2: EATON WCB2 324 Auxiliary Brake Leak
An EATON WCB2 324 auxiliary brake leaked hydraulic fluid, reducing braking power, due to worn 000402 X 0023 Polypak seals. Installing new OEM-spec seals and pressure-testing the brake eliminated leaks and restored full stopping torque.
Case 3: JC70D Drawworks Bearing Overheating
A JC70D drawworks drum shaft overheated and caused abnormal noise due to a worn 22232C/W33 spherical roller bearing and damaged PG190X225X18 oil seal. Swapping in the new bearing and seal, then realigning shaft spacers, fixed the overheating issue.
Frequently Asked Questions (FAQ)
Question | Answer |
Are these GB/T fasteners compatible only with HH JC70D drawworks? | Yes, these GB/T standard bolts, nuts, and split pins are direct OEM replacements designed specifically for HH JC70D/JC70DB and ZJ40DBST drawworks assemblies. |
Do these Polypak seals fit EATON AIRFLEX WCB2 324 auxiliary brakes? | The 000402 X 0023 and 000402 X 0024 Polypak seals are precision engineered exclusively for EATON AIRFLEX WCB2 324 auxiliary brake hydraulic systems. |
What HPU model uses the FAX-100X30 filter element? | This filter element is a direct replacement for the SJ PETRO YPS30/75-1450 disc brake HPU, keeping hydraulic fluid clean and preventing valve clogging. |
Closing Section: Procurement Reference & Call to Action
This complete lineup of JC70D/JC70DB drawworks and EATON WCB2 324 auxiliary brake parts acts as both a reliable procurement reference standard and a practical technical troubleshooting guide for drilling rig maintenance teams. Every component is backed by strict quality testing, industry standard certifications, and field-proven performance data, so you can source dependable parts that reduce unplanned rig downtime and lower long-term maintenance costs. Whether you need emergency clutch valve replacements, brake seal repairs, bearing overhauls, or hardware replacements, these direct-fit, durable parts meet global oilfield safety and operational standards. Investing in these precision-engineered spare parts ensures consistent drawworks performance, leak-free brake operation, and secure mechanical fastening, avoiding costly drilling shutdowns in even the harshest rig environments. Secure your supply of these certified, OEM-compatible components to match your exact drawworks and brake repair needs, and keep your critical rig operations running efficiently and safely.